text: module.exports = function (engine) {
    const symbols = {
      btc: 'xbt',
      ltc: 'ltc',
      xmr: 'xmr',
      dash: 'dash'
    }
  
    return {
      async resolve (query) {
        if (query.source !== 'pln' || !symbols[query.target]) {
          return {}
        }
        const pair = [symbols[query.target], query.source].join('')
        const rr = await engine.fetch({ url: `https://kantorbitcoin.pl/pricetools/index.php/api/kantorprices/${pair}` }, 'kantorbitcoin')
        const data = rr.data
        const rate = query.dir === 'sell' ? data.buyprice : data.sellprice
        return {
          price: String(Number(rate) * Number(query.value))
        }
      }
    }
  }
  